SKU: 9349828636

Supertech Honda K20/K24 Black Nitrided Flat Faced Exhaust Valve - Single

Sale price$21.07 Regular price$23.41
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Ships within 48 hours · Estimated delivery Oct 30 - Nov 4

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Description

Supertech Honda K20/K24 Black Nitrided Flat Faced Exhaust Valve - SingleSupertech Honda K20 K24 Black Nitrided Intake Valve HEVN 1020F Head Diameter: 30. 00mm (STD) Flat Length: 108. 65mm Material: Black Nitrated Stem Diameter: 5. 45mm Supertech uses over 20 years of manufacturing experience to design and produce their Valves. Intensive testing and working closely with engine builders provides continuous improvements and provides the market with the best possible product for every application. High flow rate, durability

Supertech Honda K20/K24 Black Nitrided Intake Valve - HEVN-1020F

Head Diameter: 30.00mm (STD) Flat
Length: 108.65mm
Material: Black Nitrated
Stem Diameter: 5.45mm

Supertech uses over 20 years of manufacturing experience to design and produce their Valves.  Intensive testing and working closely with engine builders provides continuous improvements and provides the market with the best possible product for every application.  High flow rate, durability and quality are all of great concern.

Supertech understands that each motor is unique in its requirement and demands.  There fore Supertech offers valves in a range of materials to suit any motor.

* Stainless - Made as a one piece forged valve for higher strength and reliability.  Supertech uses mostly EV8 (21-4N) for Intake and Exhaust Valves, however there are other alloys that are used with different heat treatments to manufacture Valves for specific applications.

To address the issue of high heat, Supertech uses two different types of coatings:

Chrome Coating - Widely used in performance valves

Black Nitride - This is a hardening treatment that provides a smooth surface then chromed valves and produces less friction between stem and guide.

* Inconel 751 - Nickel Base Alloy - Nickel base alloy is used for exhaust valves that reach very high temperatures, such as those in turbo or supercharged applications.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 9349828636

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Alan 77
Lake Worth, US
★★★★★ 5
Works well
Style: Full Synthetic High Mileage, Size: 5 qt (Pack of 1), Configuration: 10W-30
I really like Valvaline oil for my vehicle, have for years
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Reviewed in the United States on May 30, 2026
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Howard
Port Orchard, US
★★★★★ 5
There’s oil in those yarn Hills!
Style: Full Synthetic High Mileage, Size: 1 qt (Pack of 1), Configuration: 5W-20
It’s great oil at a fair price. The shipping was expeditious and glad it was.
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Reviewed in the United States on May 22, 2026
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Robert
Phoenix, US
★★★★★ 5
Great value, cheaper than local.
Style: Full Synthetic High Mileage, Size: 5 qt (Pack of 1), Configuration: 0W-20
Good value, fast shipping, Valvoline quality.
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Reviewed in the United States on May 16, 2026
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Chris Brownell
Bozeman, US
★★★★★ 4
Good buy
Style: Full Synthetic High Mileage, Size: 5 qt (Pack of 1), Configuration: 5W-20
Run of the mill oil but for a great price
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Reviewed in the United States on March 27, 2026
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Jim
Alexandria, US
★★★★★ 5
The Excellence of Motion Preserved
Style: Full Synthetic High Mileage, Size: 1 qt (Pack of 1), Configuration: 5W-30
In the pursuit of the ideal, where reason governs and the forms of all things aspire to perfection, the Valvoline Full Synthetic High Mileage with MaxLife Technology 5W-30 Motor Oil presents itself as a manifestation of virtue within the mechanical realm. It is not merely oil, but a substance designed with foresight, sustaining the engine as the soul sustains the body. The viscosity is measured, neither excessive nor deficient, allowing parts to move in harmonious accord, reducing friction and preserving integrity. One observes that engines treated with this oil respond with steadiness and endurance, as if guided by a rational principle, minimizing wear and extending life in a manner that reflects the pursuit of the Good. I grant it five stars, for it exemplifies a balance between strength and refinement, a practical embodiment of foresight, wisdom, and care—ensuring that motion, that vital energy, continues undisturbed, much as a well-ordered soul achieves its fullest expression through the contemplation of virtue.
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Reviewed in the United States on December 13, 2025

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